19870620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:81

約数の個数: 288

約数和(自身を含む): 77220864

約数和(自身を除く): 57350244

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 17, 20, 21, 22, 23, 28, 30, 33, 34, 35, 42, 44, 46, 51, 55, 60, 66, 68, 69, 70, 77, 84, 85, 92, 102, 105, 110, 115, 119, 121, 132, 138, 140, 154, 161, 165, 170, 187, 204, 210, 220, 230, 231, 238, 242, 253, 255, 276, 308, 322, 330, 340, 345, 357, 363, 374, 385, 391, 420, 460, 462, 476, 483, 484, 506, 510, 561, 595, 605, 644, 660, 690, 714, 726, 748, 759, 770, 782, 805, 847, 924, 935, 966, 1012, 1020, 1122, 1155, 1173, 1190, 1210, 1265, 1309, 1380, 1428, 1452, 1518, 1540, 1564, 1610, 1694, 1771, 1785, 1815, 1870, 1932, 1955, 2057, 2244, 2310, 2346, 2380, 2415, 2420, 2530, 2541, 2618, 2737, 2783, 2805, 3036, 3220, 3388, 3542, 3570, 3630, 3740, 3795, 3910, 3927, 4114, 4235, 4301, 4620, 4692, 4830, 5060, 5082, 5236, 5313, 5474, 5566, 5610, 5865, 6171, 6545, 7084, 7140, 7260, 7590, 7820, 7854, 8211, 8228, 8349, 8470, 8602, 8855, 9660, 10164, 10285, 10626, 10948, 11132, 11220, 11730, 12342, 12705, 12903, 13090, 13685, 13915, 14399, 15180, 15708, 16422, 16698, 16940, 17204, 17710, 19481, 19635, 20570, 21252, 21505, 23460, 24684, 25410, 25806, 26180, 26565, 27370, 27830, 28798, 30107, 30855, 32844, 33396, 35420, 38962, 39270, 41055, 41140, 41745, 43010, 43197, 47311, 50820, 51612, 53130, 54740, 55660, 57596, 58443, 60214, 61710, 64515, 71995, 77924, 78540, 82110, 83490, 86020, 86394, 90321, 94622, 97405, 106260, 116886, 120428, 123420, 129030, 141933, 143990, 150535, 164220, 166980, 172788, 180642, 189244, 194810, 215985, 233772, 236555, 258060, 283866, 287980, 292215, 301070, 331177, 361284, 389620, 431970, 451605, 473110, 567732, 584430, 602140, 662354, 709665, 863940, 903210, 946220, 993531, 1168860, 1324708, 1419330, 1655885, 1806420, 1987062, 2838660, 3311770, 3974124, 4967655, 6623540, 9935310, 19870620]

約数ペア:

[(1, 19870620), (2, 9935310), (3, 6623540), (4, 4967655), (5, 3974124), (6, 3311770), (7, 2838660), (10, 1987062), (11, 1806420), (12, 1655885), (14, 1419330), (15, 1324708), (17, 1168860), (20, 993531), (21, 946220), (22, 903210), (23, 863940), (28, 709665), (30, 662354), (33, 602140), (34, 584430), (35, 567732), (42, 473110), (44, 451605), (46, 431970), (51, 389620), (55, 361284), (60, 331177), (66, 301070), (68, 292215), (69, 287980), (70, 283866), (77, 258060), (84, 236555), (85, 233772), (92, 215985), (102, 194810), (105, 189244), (110, 180642), (115, 172788), (119, 166980), (121, 164220), (132, 150535), (138, 143990), (140, 141933), (154, 129030), (161, 123420), (165, 120428), (170, 116886), (187, 106260), (204, 97405), (210, 94622), (220, 90321), (230, 86394), (231, 86020), (238, 83490), (242, 82110), (253, 78540), (255, 77924), (276, 71995), (308, 64515), (322, 61710), (330, 60214), (340, 58443), (345, 57596), (357, 55660), (363, 54740), (374, 53130), (385, 51612), (391, 50820), (420, 47311), (460, 43197), (462, 43010), (476, 41745), (483, 41140), (484, 41055), (506, 39270), (510, 38962), (561, 35420), (595, 33396), (605, 32844), (644, 30855), (660, 30107), (690, 28798), (714, 27830), (726, 27370), (748, 26565), (759, 26180), (770, 25806), (782, 25410), (805, 24684), (847, 23460), (924, 21505), (935, 21252), (966, 20570), (1012, 19635), (1020, 19481), (1122, 17710), (1155, 17204), (1173, 16940), (1190, 16698), (1210, 16422), (1265, 15708), (1309, 15180), (1380, 14399), (1428, 13915), (1452, 13685), (1518, 13090), (1540, 12903), (1564, 12705), (1610, 12342), (1694, 11730), (1771, 11220), (1785, 11132), (1815, 10948), (1870, 10626), (1932, 10285), (1955, 10164), (2057, 9660), (2244, 8855), (2310, 8602), (2346, 8470), (2380, 8349), (2415, 8228), (2420, 8211), (2530, 7854), (2541, 7820), (2618, 7590), (2737, 7260), (2783, 7140), (2805, 7084), (3036, 6545), (3220, 6171), (3388, 5865), (3542, 5610), (3570, 5566), (3630, 5474), (3740, 5313), (3795, 5236), (3910, 5082), (3927, 5060), (4114, 4830), (4235, 4692), (4301, 4620)]